Samsung RS25H50 Fast Track Troubleshooting page 8

Connector Layout with part position (Inverter Board)
1. PCB Power Supply : From the SMPS circuit, it supplies 15V
and 5V for the Main PBA control and supplies15V and 5V to
the Inverter circuit for the Compressor control.
2. Inverter Control Circuit : Fridge Compressor Control Circuit.
3. COMP Driving / Feedback CircuitIt receives the COMP
operation signals from the Main PBA and feedbacks the
inverter errors to the Main PBA.
4. BOOTSTRAP Charger : It is an independent power circuit for
the driving of the IMP High-Phase IGBT.
5. Current Pickup Circuit : It pickups the currents taken by the
Shunt resistance and does the PWM DUTY control.
6. IPM (FNE41060)
7. Micom (MN103SFC2D)